add regex101 url

packages/app/src/components/SearchPage/SearchPageBase.tsx

@@ -151,6 +151,7 @@ const SearchPageBaseSubstance: ForwardRefRenderFunction<ISelectableAll & IReturn
 
   const highlightKeywords = searchingKeyword != null
     // Remove double quotation marks before and after a keyword if present
+    // https://regex101.com/r/4QKBwg/1
     ? searchingKeyword.match(highlightKeywordsSplitter)?.map(keyword => keyword.replace(/^"(.*)"$/, '$1')) ?? undefined
     : undefined;